Data Required

Data: Information that supports and/or describes the alteration or repair, including the following:

Drawings, sketches, and/or photographs

Stress analysis

Service Bulletins

Engineering Orders

Operating limitations

Approved data: Data that can be used to substantiate major repairs/major alterations, derived from the following:

  1. Type Certificate Data Sheets
  2. Supplemental Type Certificate (STC) data, provided that it specifically applies to the item being repaired/altered
  3. Airworthiness Directives (AD)
  4. Airframe, engine, and propeller manufacturer's "FAA-approved" maintenance manuals or instructions
  5. Appliance manufacturer's manuals or instruction, unless specifically not approved by the Administrator or resulting in an alteration to the airframe, engine, and/or propeller
  6. FAA Form 337 [ Front, Back, Info ], Major Repair or Alteration, when the specified data has been previously approved and will be used as a basis for a field approval
  7. CAA Form 337, dated prior to 10/1/55
  8. FAA Form 337[ Front, Back, Info ], used to approve multiple usage only, by the original modifier
  9. Structural Repair Manuals (SRM), only as a source of approved data for a major repair, when it is an FAA-approved document. Data that is contained in an SRM that is not FAA-approved, can be used on a case-by-case basis if prior FAA approval is granted for that repair.
  10. Parts Manufacturer Authorization (PMA), is considered approved data for the part only, an STC may be required for the actual installation
  11. Technical Standard Order Authorization (TSOA)
  12. Delegation Option Authorization produced FAA-approved data
  13. Designated Engineering Representative (DER) approved data, only within authorized limitations
  14. Designated Alteration Station (DAS) FAA approved
  15. Repair data, under SFAR 36, for the holder's aircraft only
  16. Foreign bulletins, for use on U.S.-certificated foreign aircraft, when approved by the foreign authority
  17. Data describing an article or appliance used in an alteration which is FAA-approved under a TSO. As such, the conditions and tests required for TSO approval of an article are minimum performance standards. The article may be stalled only if further evaluation by the operator (applicant) documents an acceptable installation which may be approved by the Administrator.
  18. Data in the form of (TCA) Appliance Type Approval issued by the Minister of Transport Canada for those parts or appliances for which there is no current TSO available. The TCA certificate is included within the installation manual provided with the appliance and includes the dates of issuance and an environmental qualification statement.
  19. Data describing a part or appliance used in an alteration which is FAA-approved under a Parts Manufacturer Approval (PMA). (An STC may be required to obtain a PMA as a means of assessing airworthiness and/or performance of the part.)

Acceptable Data

AC 43.13-1, Acceptable Methods, Techniques, and Practices (Aircraft Inspection and Repair), may be used directly as approved data (for repairs only) without further approval only when there is no manufacturer repair or maintenance instructions that address the repair and the user has determined that it is:

• appropriate to the product being repaired;

• directly applicable to the repair being made; and

• not contrary to manufacturer's data.

This data may also be used as a basis to gain FAA data approval for major repairs.

FAA FIELD APPROVAL (FAA FORM 337) issued for duplication of identical aircraft may be used as approved data only when the identical alteration is performed on an aircraft of identical make, model, and series by the original modifier. FAA Form 337's info. approved in 1955 or earlier may be used as approved data